Soakaway Percolation Testing in Farnham
2 min readFarnhamBy AA Drainage
If your Farnham extension or new build will drain rainwater to a soakaway, Building Control will want to know the ground can take it. A percolation test gives that answer.
How results affect design
The faster water drains, the smaller the soakaway can be. Slow results mean a larger soakaway or a different solution such as attenuation storage.
What you receive
Our report includes:
- Test locations and depths
- Recorded drop times
- Calculated infiltration or percolation values
- Recommendations for the drainage design
Mixed ground around Farnham
Ground varies from sandy heathland to clay. Testing at the actual soakaway location is the only reliable way to design it.
Frequently asked questions
Do I need a test for a small extension?
Often yes if a new soakaway is proposed. Building Control will confirm.
Can you design the soakaway too?
Yes, we can size and install it based on the results.